We observed that, between 1999 and 2006, up to 50% of the methicillin-susceptible Staphylococcus aureus (MSSA) bloodstream isolates in our hospital had a genetic background common to endemic methicillin-resistant S. aureus clones (clonal complex 5 [CC5], CC8, CC22, CC30, and CC45). Furthermore, several successful MSSA lineages, such as CC7 and CC15, were observed.
Nulens, E., Stobberingh, E. E., van Dessel, H. A., Sebastian, S. A. E., van Tiel, F. H., Beisser, P. S., & Deurenberg, R. H. C. A. (2008). Molecular characterization of Staphylococcus aureus bloodstream isolates collected in a Dutch university hospital between 1999 and 2006. Journal of Clinical Microbiology, 46(7), 2438-2441. https://doi.org/10.1128/JCM.00808-08